FR1087977A - Adjustable magnetic electronic lens - Google Patents

Adjustable magnetic electronic lens

Info

Publication number: FR1087977A
Authority: FR; France
Prior art keywords: adjustable magnetic; electronic lens; magnetic electronic; lens; adjustable
Prior art date: 1952-09-13
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1952-09-13

Filing date

1953-09-11

Publication date

1955-03-02

1953-09-11 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1955-03-02 Application granted granted Critical

1955-03-02 Publication of FR1087977A publication Critical patent/FR1087977A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement, ion-optical arrangement
- H01J37/10—Lenses
- H01J37/14—Lenses magnetic

Landscapes

Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Electron Beam Exposure (AREA)
Electron Sources, Ion Sources (AREA)

FR1087977D 1952-09-13 1953-09-11 Adjustable magnetic electronic lens Expired FR1087977A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL172475		1952-09-13

Publications (1)

Publication Number	Publication Date
FR1087977A true FR1087977A (en)	1955-03-02

Family

ID=19750580

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1087977D Expired FR1087977A (en)	1952-09-13	1953-09-11	Adjustable magnetic electronic lens

Country Status (7)

Country	Link
US (1)	US2749464A (en)
BE (1)	BE522744A (en)
CH (1)	CH316013A (en)
DE (1)	DE948799C (en)
FR (1)	FR1087977A (en)
GB (1)	GB735272A (en)
NL (2)	NL91356C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2939994A (en) *	1957-01-28	1960-06-07	Westinghouse Electric Corp	Electron discharge device
US3787696A (en) *	1972-03-15	1974-01-22	Etec Corp	Scanning electron microscope electron-optical column construction
FR2597259A1 (en) *	1986-04-15	1987-10-16	Thomson Csf	ELECTRONIC BEAM DEVICE FOR PROJECTING THE IMAGE OF AN OBJECT ON A SAMPLE
GB0912332D0 (en) *	2009-07-16	2009-08-26	Vg Systems Ltd	Magnetic lens,method for focussing charged particles and charged particle energy analyser
DE102009028013B9 (en) *	2009-07-24	2014-04-17	Carl Zeiss Microscopy Gmbh	Particle beam device with a diaphragm unit and method for adjusting a jet stream in a particle beam device
EP3872837A1 (en)	2020-02-25	2021-09-01	The Provost, Fellows, Scholars and other Members of Board of Trinity College Dublin	Pole piece for an electron microscope

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB472165A (en) *	1936-03-11	1937-09-13	Ferranti Ltd	Improvements in or relating to focusing systems for electron beams
GB494839A (en) *	1937-05-01	1938-11-01	British Thomson Houston Co Ltd	Improvements in and relating to cathode ray apparatus
US2295403A (en) *	1940-11-15	1942-09-08	Rca Corp	Apertured electron lens and method of alignment
DE898217C (en) *	1943-01-27	1953-11-30	Siemens Ag	Arrangement for changing the enlargement achievable with a magnetic electron lens
US2369782A (en) *	1943-04-01	1945-02-20	Rca Corp	Electron lens system
NL89013C (en) *	1944-05-31
US2418349A (en) *	1945-12-13	1947-04-01	Rca Corp	Method of and means for correcting for distortion in electron lens systems
US2469165A (en) *	1946-10-29	1949-05-03	Rca Corp	Correction device for electron lenses
NL147142B (en) *	1948-06-29		Hoffmann La Roche	PROCESS FOR THE PREPARATION OF A HYDROCHLORIDE OF A BENZODIAZEPINE DERIVATIVE, PROCEDURE FOR THE PREPARATION OF PREPARATIONS WITH HYPNOGENIC PROPERTIES, AND THE PREPARATION FORMED.
US2567674A (en) *	1949-11-08	1951-09-11	Rca Corp	Velocity modulated electron discharge device
US2594099A (en) *	1950-04-22	1952-04-22	Ite Circuit Breaker Ltd	Focusing coil for cathode-ray tubes
US2679018A (en) *	1950-06-30	1954-05-18	Rca Corp	Magnetic electron lens pole piece

0
- NL NL92220D patent/NL92220C/xx active
- BE BE522744D patent/BE522744A/xx unknown
- NL NL91356D patent/NL91356C/xx active
1953
- 1953-08-04 US US372239A patent/US2749464A/en not_active Expired - Lifetime
- 1953-09-09 DE DEN7714A patent/DE948799C/en not_active Expired
- 1953-09-10 GB GB25083/53A patent/GB735272A/en not_active Expired
- 1953-09-11 CH CH316013D patent/CH316013A/en unknown
- 1953-09-11 FR FR1087977D patent/FR1087977A/en not_active Expired

Also Published As

Publication number	Publication date
GB735272A (en)	1955-08-17
DE948799C (en)	1956-09-06
BE522744A (en)
CH316013A (en)	1956-09-15
NL92220C (en)
US2749464A (en)	1956-06-05
NL91356C (en)

Publication	Publication Date	Title
FR1054639A (en)	1954-02-11	Electronic switch
CH342015A (en)	1959-10-31	Electronic calculator
FR1058851A (en)	1954-03-19	Magnetic electronic lens
FR1086430A (en)	1955-02-11	Electronic counter
FR1111567A (en)	1956-03-01	Electronic microscope
FR1113365A (en)	1956-03-28	Electronic microscope
FR1085706A (en)	1955-02-07	Ferromagnetic ferrite
FR1069392A (en)	1954-07-07	Magnetic electronic lens
FR1087977A (en)	1955-03-02	Adjustable magnetic electronic lens
FR1113393A (en)	1956-03-28	Electronic lens
FR1098548A (en)	1955-08-01	Electronic switch
FR1120026A (en)	1956-06-28	Magnetic electronic lens
FR1083345A (en)	1955-01-07	Adjustable magnetic electronic lens
FR1083120A (en)	1955-01-05	Wide angle lens
FR1061177A (en)	1954-04-09	Electronic Wattmeter
FR1096469A (en)	1955-06-21	Coil
FR1106673A (en)	1955-12-21	Pole piece for electronic magnetic lens
FR1061048A (en)	1954-04-08	Electromagnetic switch-coupler
FR1060661A (en)	1954-04-05	Electronic researcher
CH326224A (en)	1957-12-15	Wide angle lens
FR1068544A (en)	1954-06-25	Electronic thermostat
FR1063416A (en)	1954-05-03	Electronic homing device
FR1052054A (en)	1954-01-21	Electromagnetic vibrator
FR1088019A (en)	1955-03-02	Magnetic materials
FR1066468A (en)	1954-06-08	Electronic direction indicator